This is an arithmetic sequence because we are adding the same amount each time. In this case, we are adding -4 to each term to get the next term
17 + (-4) = 13
13 + (-4) = 9
9 + (-4) = 5
and so on. The starting term is 
The common difference is 
The nth term of the arithmetic sequence can be found by this formula

For instance, if n = 2, then,

which matches up with the second term listed.
Answer:
-22
Step-by-step explanation:
Each line is worth 3 units
-10 - (-16) = 6 units between and there are 2 spaces
6/2 = 3
We are going down so it is negative
-16 -3 =-19
then the dot is on the next line
-19 -3 = -22
Answer:
Reflexive property
Step-by-step explanation:
The statement says that some number is equal to itself.
That's the reflexive property.